zblog提取文章中的三张或四张图片作为缩略图的代码
zblog提取文章中的三张或四张图片作为缩略图的代码。
{php}$pattern="/<img.*?src=[\'|\"](.*?)[\'|\"].*?[\/]?>/i";
$content = $article->Content;
preg_match_all($pattern,$content,$matchContent);
$picArray=array_unique(array_merge($matchContent[1]));
$pictotal=count($picArray);
if(count($matchContent[1]) >= 4){
$picsrca=$matchContent[1][0];
$picsrcb=$matchContent[1][1];
$picsrcc=$matchContent[1][2];
$picsrce=$matchContent[1][3];
}elseif(count($matchContent[1]) >= 1){
$picsrcd=$matchContent[1][0];
}{/php}
{if count($matchContent[1]) >= 3}<span id="zhaiyaotu"><a href="{$article.Url}" title="{$article.Title}"><img alt="{$article.Title}" src="{$picsrca}" /></a></span>
<span id="zhaiyaotu"><a href="{$article.Url}" title="{$article.Title}"><img alt="{$article.Title}" src="{$picsrcb}" /></a></span>
<span id="zhaiyaotu"><a href="{$article.Url}" title="{$article.Title}"><img alt="{$article.Title}" src="{$picsrcc}" /></a></span>
<span id="zhaiyaotu"><a href="{$article.Url}" title="{$article.Title}"><img alt="{$article.Title}" src="{$picsrce}" /></a></span>
{elseif count($matchContent[1])>=1 && count($matchContent[1])<3}
span id="zhaiyaotu"><a href="{$article.Url}" title="{$article.Title}"><img alt="{$article.Title}" src="{$picsrcd}" /></a></span>
<p>{php}$description = preg_replace('/[\r\n\s]+/', '', trim(SubStrUTF8(TransferHTML($article->Content,'[nohtml]'),97)).'...');{/php}{$description}</p> <p class="read-more"><a href="{$article.Url}">阅读全文</a></p>
{else}
<span id="zhaiyaotu"><a href="{$article.Url}" title="{$article.Title}"><img alt="{$article.Title}" src="{$host}/zb_users/theme/xxmy/include/noimg.png" /></a></span>
<p>{php}$description = preg_replace('/[\r\n\s]+/', '', trim(SubStrUTF8(TransferHTML($article->Content,'[nohtml]'),97)).'...');{/php}{$description}</p> <p class="read-more"><a href="{$article.Url}">阅读全文</a></p>
{/if}以小小蚂蚁主题做测试，效果图是这样的：
